Engine and Transmission Tech

tips, technology, tools and techniques related to vehicle driveline components

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jonpotvin
jon potvin
marietta, georgia
(10 posts)

Registered:
10/11/2017 09:49AM

Main British Car:
NEED SHOP TO MACHINE 215 FOR 1-PIECE SEAL
Posted by: jonpotvin
Date: October 14, 2017 02:13PM

After 3 tries i'm throwing in the towel on 2-piece rear main seals.
Please post name of experienced shop to machine my block for a 1-piece seal.
Thanks.


88v8
Ivor Duarte
Gloucestershire UK
(1041 posts)

Registered:
02/11/2010 04:29AM

Main British Car:
1974 Land Rover Lightweight V8

Re: NEED SHOP TO MACHINE 215 FOR 1-PIECE SEAL
Posted by: 88v8
Date: October 15, 2017 08:13AM

Edit your Profile to show your location.


jonpotvin
jon potvin
marietta, georgia
(10 posts)

Registered:
10/11/2017 09:49AM

Main British Car:
Re: NEED SHOP TO MACHINE 215 FOR 1-PIECE SEAL
Posted by: jonpotvin
Date: October 16, 2017 12:19PM

Will do. I am just north of Atlanta, Georgia.
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roverman
Art Gertz
Winchester, CA.
(3188 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: NEED SHOP TO MACHINE 215 FOR 1-PIECE SEAL
Posted by: roverman
Date: October 17, 2017 06:42PM

Back in the day...I would put qty. (2) rear mains caps together(mating surfaces together). I would then rough machine a counter bore, about .020" undersize ? Load the correct cap in the block and use a Kwik Way boring bar to bring in final diameter( late Rover seal). In other words, I used an aluminum plate mounted on back of block. to mount the Kwik Way securely. Onward, art.


jonpotvin
jon potvin
marietta, georgia
(10 posts)

Registered:
10/11/2017 09:49AM

Main British Car:
Re: NEED SHOP TO MACHINE 215 FOR 1-PIECE SEAL
Posted by: jonpotvin
Date: October 17, 2017 07:41PM

I assume that the 2 iron caps together was to insure an accurately machined round hole. So how do you guarantee that the finished cut is truly concentric with the rear main??? I've heard that trying to bore a hole into 1/2 iron and 1/2 aluminum can throw the cutting tool off center.
What is the final hole diameter compared to the Rover seal; how much crush do we give the seal???


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